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dc.contributor.author
García, Evelina Andrea
dc.contributor.author
Romero, Marcelo Ariel
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González, C.
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Goldberg, Edith Catalina
dc.date.available
2017-09-15T21:00:03Z
dc.date.issued
2008-12
dc.identifier.citation
García, Evelina Andrea; Romero, Marcelo Ariel; González, C.; Goldberg, Edith Catalina; Neutralization of Li+ ions scattered by the Cu (100) and (111) surfaces: A localized picture of the atom-surface interaction; Elsevier; Surface Science; 603; 4; 12-2008; 597-605
dc.identifier.issn
0039-6028
dc.identifier.uri
http://hdl.handle.net/11336/24438
dc.description.abstract
Large and face dependent neutral fractions have been found recently in the scattering of Li+ by Cu(1 0 0) and Cu(1 1 1) surfaces. These results for high work function surfaces are unexpected within the ‘traditional’ picture of a Li+ ion departing from a jellium surface model. In the present work the Li+/Cu(1 0 0) and Li+/Cu(1 1 1) interacting systems are described by a previously developed bond-pair model based on the localized interactions between the projectile ion and the atoms of the surface, and on the extended features of the electronic band structure through the surface local density of states. By only including the resonant neutralization to the Li atom ground state we explained the face and energy dependences of the measured neutral fractions for large outgoing energy values. We found that the downward shift of the Li ionization level below the Fermi level caused by the short range chemical interactions, is the main responsible of a high neutralization by the resonant mechanism. The remaining differences between theory and experiment values can be explained in terms of the energy gaps and image potential states appearing in these surfaces. The calculated distance behaviours of the energy levels corresponding to the first excited (Li-1s22p) and the negative (Li-1s22s2) atomic configurations indicate that they can also participate in the ion-surface charge exchange process.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Charge Transfer
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Alkali Metals
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Electron Transfer
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Neutralization Mechanisms
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Atom-Solid Interaction
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Otras Ciencias Físicas
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Neutralization of Li+ ions scattered by the Cu (100) and (111) surfaces: A localized picture of the atom-surface interaction
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-09-13T16:10:11Z
dc.journal.volume
603
dc.journal.number
4
dc.journal.pagination
597-605
dc.journal.pais
Países Bajos
dc.journal.ciudad
Ámsterdam
dc.description.fil
Fil: García, Evelina Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
dc.description.fil
Fil: Romero, Marcelo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
dc.description.fil
Fil: González, C.. Czech Academy of Sciences; República Checa
dc.description.fil
Fil: Goldberg, Edith Catalina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
dc.journal.title
Surface Science
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.susc.2008.12.022
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0039602808008649
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